: Kurt Marti
: Stochastic Optimization Methods
: Springer-Verlag
: 9783540268482
: 1
: CHF 96.90
:
: Allgemeines, Lexika
: English
: 314
: Wasserzeichen/DRM
: PC/MAC/eReader/Tablet
: PDF

Opt mization problems arising in practice involve random parameters. For the computation of robust optimal solutions, i.e., optimal solutions being insensitive with respect to random parameter variations, deterministic substitute problems are needed. Based on the distribution of the random data, and using decision theoretical concepts, optimization problems under stochastic uncertainty are converted into deterministic substitute problems. Due to the occurring probabilities and expectations, approximative solution techniques must be applied. Deterministic and stochastic approximation methods and their analytical properties are provided: Taylor expansion, regression and response surface methods, probability inequalities, First Order Reliability Methods, convex approximation/deterministic descent directions/efficient points, stochastic approximation methods, differentiation of probability and mean value functions. Convergence results of the resulting iterative solution procedures are given.

Preface5
Contents9
Part I Basic Stochastic Optimization Methods15
1 Decision/Control Under Stochastic Uncertainty16
1.1 Introduction16
1.2 Deterministic Substitute Problems: Basic Formulation18
2 Deterministic Substitute Problems in Optimal Decision Under Stochastic Uncertainty22
2.1 Optimum Design Problems with Random Parameters22
2.2 Basic Properties of Substitute Problems31
2.3 Approximations of Deterministic Substitute Problems in Optimal Design33
2.4 Applications to Problems in Quality Engineering41
2.5 Approximation of Probabilities - Probability Inequalities42
2.6 Construction of State Functions in Structural Analysis and Design51
Part II Differentiation Methods57
3 Differentiation Methods for Probability and Risk Functions58
3.1 Introduction58
3.2 Transformation Method: Differentiation by Using an Integral Transformation61
3.3 The Differentiation of Structural Reliabilities69
3.4 Extensions71
3.5 Computation of Probabilities and its Derivatives by Asymptotic Expansions of Integral of Laplace Type76
3.6 Integral Representations of the Probability Function P(x) and its Derivatives86
3.7 Orthogonal Function Series Expansions I: Expansions in Hermite Functions, Case m = 189
3.8 Orthogonal Function Series103
3.9 Orthogonal Function Series Expansions III: Expansions in Trigonometric, Legendre and Laguerre Series105
Part III Deterministic Descent Directions108
4 Deterministic Descent Directions and Efficient Points110
4.1 Convex Approximation110
4.2 Computation of Descent Directions in Case of Normal Distributions116
4.3 Efficient Solutions ( Points)128
4.4 Descent Directions in Case of Elliptically Contoured Distributions132
4.5 Construction of Descent Directions by Using Quadratic Approximations of the Loss Function135
Part IV Semi-Stochastic Approximation Methods141
5 RSM-Based Stochastic Gradient Procedures142
5.1 Introduction142
5.2 Gradient Estimation Using the Response Surface Methodology (RSM)144
5.3 Estimation of the Mean Square (Mean Functional) Error155
5.4 Convergence Behavior of Hybrid Stochastic Approximation Methods160
5.5 Convergence Rates of Hybrid Stochastic Approximation Procedures166
6 Stochastic Approximation Methods with Changing Error Variances190
6.1 Introduction190
6.2 Solution of Optimality Conditions191
6.3 General Assumptions and Notations192
6.4 Preliminary Results196
6.5 General Convergence Results203
6.6 Realisation of Search Directions217
6.7 Realization of Adaptive Step Sizes232
6.8 A Special Class of Adaptive Scalar Step Sizes249
Part V Technical Applications264
7 Approximation of the Probability of Failure/Survival in Plastic Structural Analysis and Optimal Plastic Design266
7.1 Introduction266
7.2 Probability of Survival/Failure p8,Pf267
7.3 Approximation of ps,Pf by Linearization of the Transformed Limit State Function270
7.4 Computation of the ß-Point z275
7.5 Trusses278
7.6 Reliability- Based Design Optimization ( RBDO)282
Part VI Appendix286
A Sequences, Series and Products288
A.1 Mean Value Theorems for Deterministic Sequences288
A.2 Iterative Solution of a Lyapunov Matrix Equation296
B Convergence Theorems for Stochastic Sequences300
B.1 A Convergence Result of Robbins-Siegmund300
B.2 Convergence in the Mean303
B.3 The Strong Law of Large Numbers for Dependent Matrix Sequences305
B.4 A Central Limit Theorem for Dependent Vector Sequences306
C Tools from Matrix Calculus308
C.1 Miscellaneous308
C. 2 The v. Mises- Procedure in Case of Errors309
Index322